Military Marriage? Transmigrating to the 70s as Female Cannon Fodder with a Sign-In System

Book transmigration + system + space + farming + female protagonist slightly comedic, vengeful, clear-headed in the world, a cute little darling (drama academy graduate) + devoted scheming male lead.

In the time it took to go out for a meal, she was gone. When she opened her eyes again, Ning Xiyue had already transmigrated to the 70s. It was in a koi group pet era novel, as the love-brained little cannon fodder who gives equipment to the female lead.

Ning Xiyue declares: Nope, reject love brain.

Tear apart the scumbag man and cheap woman by hand.

Return what was taken from her to her; spit out what was eaten from her.

Something suspected to be a future golden finger was given away? Snatch it back.

Golden finger she can't use? Smash it with a brick so it doesn't benefit others.

The scumbag man who harmed the original host gets kicked to the Great Northwest with one foot. The little white flower cousin who conspired with the scumbag to cause the original host's death and is suspected to be the female lead, wait to bear her anger.

......

Later, she obtained her own golden finger, the sign-in system where anything can be signed for.

With the sign-in system, she happily heads to the countryside as an educated youth to support rural construction.

After going to the countryside, she discovers that the novel she transmigrated into isn't that simple.

The harmful cousin isn't the real female lead? The female lead is someone else?

Ning Xiyue declares: No matter who the female lead is, the little white flower cousin can't escape being beaten and tormented by her.

As for the real female lead, isn't it nice for her to eat melons, watch the show, and develop her career?

Note: Male lead makes soy sauce, with little screen time.